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16014921 = 313478737
BaseRepresentation
bin111101000101…
…111001001001
31010010122100020
4331011321021
513044434141
61331131053
7253060506
oct75057111
933118306
1016014921
11904927a
125443a89
1334195b0
1421ac4ad
151615266
hexf45e49

16014921 has 16 divisors (see below), whose sum is σ = 23487744. Its totient is φ = 9644544.

The previous prime is 16014907. The next prime is 16014937. The reversal of 16014921 is 12941061.

It is not a de Polignac number, because 16014921 - 211 = 16012873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16014891 and 16014900.

It is not an unprimeable number, because it can be changed into a prime (16014961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2536 + ... + 6201.

It is an arithmetic number, because the mean of its divisors is an integer number (1467984).

Almost surely, 216014921 is an apocalyptic number.

It is an amenable number.

16014921 is a deficient number, since it is larger than the sum of its proper divisors (7472823).

16014921 is a wasteful number, since it uses less digits than its factorization.

16014921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8800.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 16014921 is about 4001.8646903662. The cubic root of 16014921 is about 252.0625159839.

Adding to 16014921 its reverse (12941061), we get a palindrome (28955982).

The spelling of 16014921 in words is "sixteen million, fourteen thousand, nine hundred twenty-one".

Divisors: 1 3 13 39 47 141 611 1833 8737 26211 113581 340743 410639 1231917 5338307 16014921